Migration.php

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<?php

/* Copyright (c) 2019 Richard Klees <richard.klees@concepts-and-training.de> Extended GPL, see docs/LICENSE */

namespace ILIAS\Setup;

interface Migration
{
    public const INFINITE = -1;

    public function getLabel() : string;

    public function getDefaultAmountOfStepsPerRun() : int;

    public function getPreconditions(Environment $environment) : array;

    public function prepare(Environment $environment) : void;

    public function step(Environment $environment) : void;

    public function getRemainingAmountOfSteps() : int;
}